By Zoeb Hussian, Zulkifly Abdullah, Zanial Alimuddin
Following a concise assessment of fluid mechanics knowledgeable by way of a number of engineering functions and examples, this reference offers and analyzes significant forms of fluid equipment and the main sessions of generators, in addition to pump expertise. It bargains execs and scholars in hydraulic engineering with historical past suggestions in addition to functional insurance of recent turbine applied sciences, totally explaining the benefits of either steam and fuel generators. Description, layout, and operational info for the Pelton, Francis, Propeller, and Kaplan generators are supplied, as are outlines of assorted forms of strength crops. It presents solved examples, bankruptcy difficulties, and a radical case study.
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Extra resources for Basic Fluid Mechanics and Hydraulic Machines
The window is in a high-rise building. The wind speed is not affected by ground effects. 2 kg/m 3 Solution The pressure on the window facing the storm will be stagnation pressure as velocity of the wind is zero. Working with gauge pressures, the pressure upstream in the wind is zero. 8 mls Applying Bernoullis equation to calculate the pressure on the window J! t=-+ P v¥1~ Y 2g y2 + +-' 2g Zl I 2 = Z2; PI = 0; Y2 = 0, and P2 = Po Po Y,2. 9 The pressure head in an air pipe shown in Fig. 20 is measured with a piezometer as 16 mm of water.
Laminar flow is one where the streamline moves in parallel lines and turbulent flow when streamlines cross each other and the flow is diffused. Example: Flow of highly viscous syrup onto a pan cake, flow of honey is laminar whereas splashing water is from a faucet into a sink below it or irregular gustiness of wind represents turbulent flow. Reynold's number is to distinguish the two types of flow. Reynolds number for the pipe flow is given by • Re= pOY Jl where 0 diameter of pipe, p density, Y velocity and ~L viscosity offluid.
Determine the flow rate from the nozzle and the power required to drive the pump. B 2m Fig. 21 Fire engine pump installation. 0366 1113/S Applying Bernoullis equation between points A and C 2 ? V PJ\;" Pc Vc + +z = + +zc-H Y 2g A Y 2g At the free surface of the slimp, the pressure is atmospheric so that PA = 0, the velocity V i\ is also zero as the slimp is considered very large and A can be taken as datum so that ZA = 0 also Pc = atmospheric pressure = 0, the head developed by the pump is Hp , substituting proper values in the equation vi.